Zanussi 1600 Washer/Dryer stops half way through a cycle or 20sec after starting a program. It goes back to the original time. The washing can be hot and undrained. In trying to diagnose the problem, I discover it doesn't like any cycle above 40 degrees. Each time you try to encourage it to start you can hear the pump working and then it stops working, as if it can't connect to program. Found after leaving for an hour it started on 40 wash. Perhaps it had cooled down? Filter is clean. Any thoughts?